Samreen Zahra

ORCID: 0000-0001-5504-7816
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Research Areas
  • Transition Metal Oxide Nanomaterials
  • Gas Sensing Nanomaterials and Sensors
  • Pigment Synthesis and Properties
  • Copper-based nanomaterials and applications
  • Adsorption and biosorption for pollutant removal
  • TiO2 Photocatalysis and Solar Cells
  • Advanced Photocatalysis Techniques
  • Phosphorus and nutrient management
  • Nuclear physics research studies
  • Nanomaterials for catalytic reactions
  • Quantum Chromodynamics and Particle Interactions
  • Atomic and Molecular Physics
  • Nanoparticles: synthesis and applications
  • Magnetic Properties and Synthesis of Ferrites
  • Heavy metals in environment
  • Magneto-Optical Properties and Applications
  • Chemical and Physical Properties in Aqueous Solutions
  • Crystallization and Solubility Studies
  • Dielectric properties of ceramics
  • Quantum Dots Synthesis And Properties
  • Electrochemical Analysis and Applications
  • Metal Extraction and Bioleaching
  • Surfactants and Colloidal Systems

Pakistan Council of Scientific & Industrial Research
2017-2025

Islamia College University
2022

University of Faisalabad
2020

University of Agriculture Faisalabad
2020

Natural as well acid modified dead biomass of brown marine alga Sargassum sp. was employed for the elimination cadmium and zinc ions from synthetic wastewater; batch mode experiments were carried out to optimize various factors like adsorbent dosage, contact time, pH, agitation speed primary metal concentration at room temperature (298.15 K) both types adsorbents i.e. natural treated. Application Langmuir Freundlich isotherms suggested that adsorbed better compared one; though sorption on a...

10.1007/s13201-017-0624-3 article EN cc-by Applied Water Science 2017-09-27

Chou-Yang model has been used to obtain the electromagnetic form factor and root mean square (rms) radius of proton, using experimental data for proton-proton elastic scattering at √s ≈ 7, 8, 13 TeV. The differential cross-section low squared four-momentum transfer ∣t∣ is fitted a single exponential function extract aforementioned center mass energies. Extracted factors are prediction rms proton. A comparison charge different centers energies truly reflects fact that our results agree well...

10.15407/jnpae2025.01.055 article EN cc-by-nc Nuclear Physics and Atomic Energy 2025-03-29

Aqueous route of sol-gel method was used to synthesize nanocrystalline nickel ferrite (NiFe2O4) from a stoichiometric mixture nitrate hexahydtrate and ferric nonahydrate precursors using aqueous ethanol as solvent polypropylene glycol stabilizing agent. The gel obtained calcined at various temperatures ranging 500 °C 900 °C. effect calcination temperature on structural magnetic properties determined by X-ray diffraction, infrared spectroscopy, thermogravimetry, field emission scanning...

10.1186/s13065-025-01454-w article EN cc-by-nc-nd BMC Chemistry 2025-04-21

Abstract Background This study is aimed to synthesize nanosize zinc oxide by acid catalyzed sol–gel process using nitrate hexahydrate as precursor, aqueous isopropanol solvent and glycerin for making polyol system. The mediated procedure was employed in combination with calcination induced synthesis of nanoparticles numerous sizes obtained the variation temperature from 500 900 ℃. crystal structure prepared samples characterized X-ray diffraction analysis (XRD). Infrared spectroscopy (IR)...

10.1186/s13065-022-00900-3 article EN cc-by BMC Chemistry 2022-11-24

This study reports the base-catalyzed aqueous sol-gel synthesis of zinc oxide nanoparticles. The solution was primarily comprised nitrate hexahydrate as a metal precursor, isopropyl alcohol and water solvents, glycerin stabilizing agent. effect calcination temperature on structure morphology prepared nanoparticles investigated by varying from 500 to 900 °C. X-ray diffraction analysis, infrared spectroscopy, thermogravimetric field emission scanning electron microscopy were employed determine...

10.5155/eurjchem.13.2.162-167.2231 article EN European Journal of Chemistry 2022-06-30

Magnesium doped titania (MDT) composites with varying magnesium weight percentages (1-5 wt. %) were synthesized through a very simple and economical route of sol-gel method. The reactants used for making alkoxide precursor titanium tetrachloride whereas nitrate was doping into in mixture solvents i.e. ethyl alcohol water. optimum conditions maintained preparing sol pH 3 60 ºC temperature constant stirring 2 hours. gel obtained after drying the each sample calcined at 500 two powdered...

10.1590/s1517-707620220001.1360 article EN cc-by Matéria (Rio de Janeiro) 2022-01-01

Abstract Background In this work, nickel oxide nanoparticles were prepared by polyol mediated aqueous route of sol–gel process using nitrate hexahydrate as precursor, a mixture isopropyl alcohol and water solvent glycerol for making medium followed calcination at various temperatures ranging from 500 to 900 °C. Characterization was carried out X–ray diffractometry, infrared spectroscopy, differential scanning calorimetry-thermogravimetry field emission electron microscopy. Results The...

10.1186/s13065-022-00898-8 article EN cc-by BMC Chemistry 2022-11-27

Magnesium doped titania (MDT) composites with varying magnesium weight percentages (1–5 wt. %) were synthesized through a very simple and economical route of sol-gel method. The reactants used for making alkoxide precursor titanium tetrachloride whereas nitrate was doping into in mixture solvents i.e. ethyl alcohol water. optimum conditions maintained preparing sol pH 3 60°C temperature constant stirring 2 hours. gel obtained after drying the each sample calcined at 500°C two powdered...

10.1590/1517-7076-rmat-2021-44880 article EN cc-by Matéria (Rio de Janeiro) 2022-01-01

Treatment of the contaminated aqueous solutions to improve their quality is indispensible for reuse resulting in an emergent challenge develop facile, nontoxic and less energy consuming techniques purify water. Present study therefore aimed at synthesis adsorbent using agricultural waste i.e. coconut shell. The charcoal obtained from shell was modified by acid activation manganese doping following a simple chemical route. products were characterized scanning electron microscopy, dispersive...

10.5155/eurjchem.13.3.259-266.2248 article EN European Journal of Chemistry 2022-09-30

The biosorption of hexavalent chromium ions from aqueous solution was investigated using acid-modified dead biomass the abundantly available brown marine alga Cystoseira indica Karachi coastal area Pakistan. biosorbent characterized by infrared spectroscopy and scanning electron microscopy. optimum conditions, i.e., dosage, contact time, initial metal ion concentration, pH, temperature, were determined carrying out batch-mode experiments. sorption behavior established Langmuir Freundlich...

10.5155/eurjchem.13.4.451-459.2323 article EN European Journal of Chemistry 2022-12-31

In this study, native limestone from the Swat area of Pakistan was used for synthesis calcium propionate. The powdered allowed to react with propionic acid and effect parameters, that is, particle size (50, 100, 150, 200 mesh), (10, 15, 30 %), solid-liquid ratio (0.1:10, 0.12:1, 0.14:1, 0.16:1), reaction time (1, 1.5, 2, 2.5 hours) temperature (60, 80, 90, 100 °C) on percentage yield purity propionate studied. results showed optimum parameters were mesh size, 15% concentration, 0.14:1 ratio,...

10.5155/eurjchem.14.4.460-465.2456 article EN European Journal of Chemistry 2023-12-31

Abstract Availability of standard quality drinking water is very essential for all living-beings. drinkable has become a biggest challenge the whole world. Water vital necessity Contamination caused millions deaths in every year. Therefore, it dire need to develop and explore low cost simple methods obtain water. Zinc oxide (ZnO) good reactive agent that had used immobilize toxic substance destroyed virus from contaminated nanoparticles (ZnO-NPs) were prepared by using zinc sulfate...

10.1088/1757-899x/863/1/012037 article EN IOP Conference Series Materials Science and Engineering 2020-05-01

Abstract Background This study is aimed to synthesize zinc oxide nanoparticles by acid catalyzed sol-gel process using nitrate hexahydrate as precursor, aqueous isopropanol solvent and glycerin stabilizing agent. The optimum conditions for preparing the sol were kept at pH 1 70 ºC temperature with constant stirring two hours. gel obtained after drying was calcined various temperatures i.e. 500 ºC, 700 900 ºC. crystal structure of samples characterized X-ray diffraction analysis (XRD)....

10.21203/rs.3.rs-1683280/v1 preprint EN cc-by Research Square (Research Square) 2022-06-10

Abstract Background: In this work, nickel oxide nanoparticles were prepared by polyol mediated aqueous route of sol-gel process using nitrate hexahydrate as precursor, a mixture isopropyl alcohol and water solvent glycerol for making medium. The synthesized calcined at various temperatures ranging from 500 to 900 °C in order investigate the effect calcination temperature on their structure morphology. Characterization was carried out X-ray diffractometry, differential scanning...

10.21203/rs.3.rs-1899931/v1 preprint EN cc-by Research Square (Research Square) 2022-08-08
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